Got a link to a good programming challenge?
Got a programming challenge you've written yourself?
Post it here!

This subreddit is for programming challenges. Got a link to a good tutorial? You should try posting it in r/learnprogramming instead.

Unless it's an integral part of the challenge, please try to stay language-agnostic. It helps reduce the "help me with my programming chores" vibe. This subreddit is not a place to post your programming homework!

This course will introduce an interesting variety of subjects in programming, algorithms, and discrete mathematics though puzzles and problems which have appeared in the International ACM Programming Contest and similar venues. http://c2class.com/Programming-Challenges